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9100A/9200A/9400
Installation 1-3
Power
Requirements
The 9400 operates from one of the following nominal sources:
100V, 115V, or 230V ac. Voltage selection is done using the rear-
panel power line selector switch. The instrument operates over
the power mains frequency range of 47 to 63 Hz. Always verify
that the operating power mains voltage is the same as that
specified on the rear panel voltage selector switch.
The 9400 is supplied with the correct power line setting. If this
setting needs to be change, use a flat-head screwdriver to set the
Line Selector switch on the rear panel to the required position.
The instrument is not intended for operation from two phases of a
multi-phase ac system or across the legs of a single-phase,
three-wire ac power system. Crest factor (ratio of peak voltage to
rms) should be typically within the range of 1.3 to 1.6 at 10% of
the nominal rms mains voltage.
WARNING
DO not connect the line cord to the 9400 before
you verify the correct power line setting. Failure
to switch the instrument to match the operating
line voltage will damage the instrument and may
void the warranty.
Grounding
Requirements
To conform to the applicable safety and EMC requirements,
ensure that the Model 9400 is “earth” grounded. Always connect
the power using the supplied power cord with the earth pin
connected securely to the wall mount socket.
Signals connected to the amplifier inputs and to the amplifier
outputs are grounded through the outer shell of the BNC
connectors. Never attempt to float the signal from case ground as
it may damage the source equipment.
Calibration
The recommended calibration interval is three years. Calibration
should be performed by qualified personnel only.